Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

A NASA probe made history Christmas Eve after becoming the closest human-made object to the sun, a feat scientists say was as historic as the Apollo moon landing. The Parker Solar Probe zoomed ...

Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...

Astronomers said the Sun and the Moon cannot appear brightly side by side on the horizon, contrary to social media posts that ...

Astronomers have discovered what they believed to be a rare stable trio of gravitationally bound Kuiper Belt objects, ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

You may recall that we had six planets in the sky at one time during the evenings in late January, but this time we will have all seven planets.